France 1857 A Gold 100 Francs NGC AU53 Napoleon III. 0.900 gold 0.9334 oz of pure gold. Authenticity of this coin is guaranteed by NGC. Add a map to your own listings. The item “France 1857 A Gold 100 Francs NGC AU53 Napoleon III” is in sale since Wednesday, June 25, 2014. This item is in the category “Coins & Paper Money\Coins\ World\Gold”. The seller is “logicpapa” and is located in San Francisco, California. This item can be shipped worldwide.